Hydraulic lubricator.



F. MUELLER.

HYDRAULIC LUBRIGATOR.

'APPLIGAIION FILED JAN. 18, 1909.

Patented Apr. 30, 1912.

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HYDRAULIC LUBRIGATOE.

APPLICATION FILED JAN.18, 1909.

1,024,692, Patented Apr. 30, 1912'.

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FRANK MUELLER, OF NEW YORK, N. Y., ASSIGNOR T'O AMERICAN EAGLE MOTOR CAR COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

HYDRAULIC LUBRICATOR.

To all whom it may concern:

Be it known that I, FRANK MUELLER, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn, county of Kings, and State of New York, have invented a new and useful Imrovement in Hydraulic Lubricators, of which the following is a specification.

The object of my invention is to provide a lubricator which will be simple, economical and efiicient, and not liable to get out of order and which will force oil under hydraulic pressure in as many streams as desired and wherever desired and from a single central reservoir. This object is accomplished by my invention one embodiment of which is hereinafter disclosed.

For a more particular description of my invention reference is to be had to the accompanying drawing for forming a part hereof, in which;

Figure 1 is a side elevation of my improved lubricator, parts being shown in section. Figs. 2 and 3 are sectional views on or substantially on the lines 22 and 3-3 respectively of Fig. 1, looking in the direction of the arrows. Fig. 4 is an inverted plan view of the base of my improved lubricator. Fig. 5 is a sectional view showing one of the pumps. Fig. 6 shows a slightly modified form of driving mechanism. Fig. 7 is a sectional view of a projection lug.

Throughout the various views of the drawings, similar reference characters designate similar parts.

My improved lubricator consists essentially of a reservoir 1, pumps 2 in said reservoir, preferably arranged in alternate and oppositely inclined relationship, and suitable driving mechanism 3 for actuating said pumps.

The reservoir 1 may be of any suitable size or form and in the embodiment shown consists of a cylinder 4 closed at its top by a cover 5 which has a small cap 6 that is preferably a screw plug of the conventional form. The cover 5 is secured in place by means of tie bolts 7 which extend to a base 8 and are fixed therein and are provided with nuts 9 in the usual manner. The top 5 may be removed by first removing the nuts 9 and then raising the top 5. The cylinder 4 is also provided with the usual oil gage glass 10 connected at its top and bottom with the interior of the reservoir 1, in the Specification of Letters Patent.

Application filed January 18, 1909.

Patented Apr. 30, 1912.

Serial No. 472,902.

conventional manner, so that the amount of oil in the reservoir can always be readily determined provided there is a sufficient quantity in the reservoir to render the device operative.

The base 8 is made to fit snug in the lower end of the cylinder 4 and is provided with an upwardly extending lug 11 in which the inner end of the eccentric shaft 12 of the driving mechanism 3 is journaled and this shaft also passes through the cylinder 4 and is suitably journaled in a packing box 13 of the conventional form. As the shaft 12 makes only a few revolutions a minute in the embodiment of my invention herein shown, it is easy to make the packing box tight. The packing box 13 is held in place.

by means of suitable cap screws 14 which secure it in place. If desired, packing may be employed, between the cylinder 4 and the packing box 13, so as to form a tight joint. The base 8 is also provided with a number of upwardly extending lugs 15 which are parallel to each other and arranged in rows parallel to the shaft 12. Some of these lugs 15, are provided with ports 16 through which oil flows to the pumps 2 and also ports, 17 through which oil flows from the pumps to pipes 18 held below the base, as shown in Fig. 4. From the pipes 18 the oil flows to the parts which are lubricated by the lubricator. These pipes 18 all preferably pass through a suitable flange 19 formed on a lower edge of the base or in any other suitable position. The base 8 is also provided with suitable feet 20 which are formed on a lower edge of the base or in any other suitable position, and are perforated at 21 to form bolt holes through which bolts or screws may be passed to fix the lubricator where desired. The lugs 15 are also provided with suitable perforations 22 which register with other perforations 22 in the same row which perforations carry pins 23 on which the pumps 2 are trunnioned. As many pumps may be so arranged as desired.

Each pump 2 consists of a frame 24 and a plunger 25. The frame 24 is preferably shaped something like an ordinary iron clamp in the embodiment shown. Each frame 24, is trunnioned on a pin 23 which is fixed in one row of lugs 15, as above described, so that each frame 24 has a sliding contact with each of the adjacent lugs and forms what is practically a tight joint therewith. Each frame 24 has a diagonally disposed port 26 below the piston 25 and the cylindrical opening 27, in which this piston moves when the lubricator is in use. When the piston 25 is withdrawn from the cylinder 27 the port 26 registers with the port 16, the frame 24 which is pivoted on the pin 23 moving sufficiently for this purpose. On the return movement of the piston 25 the port 26 ceases to register with the port 16 and instead registers with the port 17 and the return movement of the plunger 25 then forces oil out through the port 17 and pipe 18 to the place where the lubricant is required.

The means for oscillating the frame 24 and reciprocating the piston 25 are an eccentric strap 28 fixed to the piston 25 in any suitable manner as by a pin 29 and an eccentric 80 which is preferably made in tegral with the shaft 12 which shaft is driven by a worm gear 31, fixed thereon or by any other suitable means. In Fig. 6 is shown a slightly modified construction in which the eccentric strap 32 is made so as to allow lost motion with regard to the eccentric so that the reciprocation of the piston 25 is reduced so that too much oil will not be pumped. lVithin limits the amount of lost mot-ion permitted will vary inversely with the amount of oil pumped.

From the foregoing the operation of my improved device will be readily understood. Assuming that the lubricator is to be used in the usual manner, the cap is removed and oil poured into the cylinder 4: until the gage glass 10 shows that the reservoir is full or nearly full. This covers the pump 2 and the driving mechanism 3. When the shaft 12 is driven the eccentric 30 drives the pump 2 as above described and thereby forces oil out through the pipe 18.

lVhile I have shown and described a hydraulic lubricator with three pumps, it is obvious that my invention is not restricted thereto, but that any number of pumps may be employed and that the form of the apparat-us must be correspondingly changed and that all such changes come within the spirit and scope of my invent-ion.

Having thus described my invention, what I claim is:

In a device of the class described, a reserciprocating piston moving therein, an eccentric sleeve fixed to each of said pistons, a common eccentric driving each of said sleeves whereby each piston is reciprocated and each frame is oscillated and means for mounting and driving said eccentric.

FRANK MUELLER. \Vitnesses Gusrnvn I. Anoxoin, H. B. ARDEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

